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Claude Sonnet 5.5 (xhigh) vs Muse Spark 1.3 (low)

Claude Sonnet 5.5 (xhigh) leads on average score with 8.3 vs 8.2. Muse Spark 1.3 (low) has the lower benchmark cost at $0.689 vs $1.069. Claude Sonnet 5.5 (xhigh) is faster at 13.17s vs 16.03s, with pass rates of 78.8% vs 81.8%.

Last updated at: 2026-09-29

Compared models

Rank
#79
Total Output Tokens
77,105
Response Time (avg)
13.17s
Total Cost
$1.069
Rank
#84
Total Output Tokens
127,711
Response Time (avg)
16.03s
Total Cost
$0.689
Recommended model Muse Spark 1.3 (low)

Its score stays close to the best score here (8.2 vs 8.3), while costing about 1.6x less than Claude Sonnet 5.5 (xhigh).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 xhigh Release: 2026-09-29 Muse Spark 1.3 Muse Spark 1.3 low Release: 2026-09-02
Score 8.3 8.2
Rank #79 #84
Reliability 10.0 10.0
Consistency 8.7 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 81.8%
Flaky tests 4 5
Total Runs 66 66
Cost per result 7.123 4.594
Total Cost $1.069 $0.689
Input Price $2.000 / 1M $1.250 / 1M
Output Price $10.000 / 1M $4.250 / 1M
Total Input Tokens 148,643 116,947
Output Tokens 9,700 11,026
Reasoning Tokens 67,405 116,685
Response Time (avg) 13.17s 16.03s
Response Time (max) 54.91s 78.72s
Response Time (total) 289.67s 352.69s
Parameters ~1T total (~100B active) ~1T total (~50B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#79 Claude Sonnet 5.5

xhigh
Cost
$0.319
Time
258.6s
Tokens
31,969 tok

#84 Muse Spark 1.3

low
Cost
$0.017
Time
83.9s
Tokens
3,959 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 5.5 8.2 7.2 88.9% 1 11.90s 10,608 555 9,501
Muse Spark 1.3 8.2 7.2 88.9% 1 20.86s 5,958 795 19,077

Quick Compare

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